.page-products {
  --cat-gap: clamp(16px, 2.4vw, 28px);
  --cat-paper-line: rgba(44, 27, 20, .16);
  --cat-glow: 0 0 0 1px rgba(53, 224, 208, .35);
  padding-bottom: clamp(40px, 7vw, 90px);
}

.page-products .cat-crumb-wrap {
  padding-top: clamp(14px, 2.4vw, 26px);
}

/* ---------- hero ---------- */
.page-products .cat-hero {
  padding: clamp(22px, 4vw, 48px) 0 clamp(30px, 5vw, 64px);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-products .cat-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.04;
  letter-spacing: -.03em;
  margin: 10px 0 18px;
  color: var(--paper);
}

.page-products .cat-hero__copy .lede {
  max-width: 46ch;
  color: var(--mist);
}

.page-products .cat-hero__actions {
  margin-top: 22px;
}

.page-products .cat-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .cat-hero__facts strong {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-products .cat-hero__facts span {
  font-size: 13px;
  color: var(--mist);
}

.page-products .cat-hero__panel {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: clamp(12px, 2vw, 22px);
}

.page-products .cat-hero__panel svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 版本线总览 ---------- */
.page-products .cat-lines {
  padding: clamp(34px, 5vw, 66px) 0;
}

.page-products .cat-lines__grid {
  display: grid;
  gap: var(--cat-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .cat-line {
  position: relative;
  padding: 20px 18px 18px;
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.page-products .cat-line::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--mist);
}

.page-products .cat-line--stable::before { background: var(--cyan); }
.page-products .cat-line--upgrade::before { background: var(--cyan-soft); }
.page-products .cat-line--old::before { background: var(--amber); }
.page-products .cat-line--light::before { background: var(--mist); }

.page-products .cat-line h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin: 12px 0 10px;
  color: var(--paper);
}

.page-products .cat-line p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .cat-line .cat-line__use {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-products .cat-lines__figure {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 路径卡墙 ---------- */
.page-products .cat-paths {
  padding: clamp(34px, 5vw, 66px) 0;
}

.page-products .cat-paths__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-products .cat-paths__note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  margin: 12px 0 18px;
}

.page-products .cat-paths__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-products .cat-paths__list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 2px;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-products .cat-paths__list a:hover,
.page-products .cat-paths__list a.is-active {
  color: var(--paper);
  border-left-color: var(--cyan);
  background: rgba(53, 224, 208, .07);
}

.page-products .cat-paths__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .cat-paths__wall {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-products .cat-group__title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cat-card {
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 8px;
  transition: border-color .22s ease;
}

.page-products .cat-card[open] {
  border-color: var(--line);
}

.page-products .cat-card__head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "no name" "dev dev";
  gap: 4px 12px;
  align-items: baseline;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .cat-card__head::-webkit-details-marker { display: none; }

.page-products .cat-card__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 2px 6px;
  white-space: nowrap;
}

.page-products .cat-card__name {
  grid-area: name;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.4;
}

.page-products .cat-card__dev {
  grid-area: dev;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-products .cat-card__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line-soft);
  margin-top: 2px;
  padding-top: 12px;
}

.page-products .cat-card__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-card__body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-products .cat-card__body li {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 升级版 ---------- */
.page-products .cat-upgrade {
  padding: clamp(34px, 5vw, 66px) 0;
}

.page-products .cat-upgrade__body {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .cat-upgrade__figure {
  margin: 0;
}

.page-products .cat-compare {
  display: grid;
  gap: var(--cat-gap);
}

.page-products .cat-compare__col {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink-2);
  padding: 0 0 16px;
  align-self: start;
}

.page-products .cat-compare__col--new {
  border-color: var(--line);
  box-shadow: var(--cat-glow);
}

.page-products .cat-compare__head {
  position: sticky;
  top: calc(var(--header-h) + 6px);
  z-index: 2;
  padding: 14px 16px 12px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line-soft);
  border-radius: var(--radius) var(--radius) 0 0;
}

.page-products .cat-compare__head h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  margin: 8px 0 0;
  color: var(--paper);
}

.page-products .cat-compare__list {
  list-style: none;
  margin: 0;
  padding: 14px 16px 0;
  display: grid;
  gap: 10px;
}

.page-products .cat-compare__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .cat-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mist);
  opacity: .6;
}

.page-products .cat-compare__col--new .cat-compare__list li::before {
  background: var(--cyan);
  opacity: 1;
}

.page-products .cat-compare__list strong {
  color: var(--cyan);
  font-weight: 600;
}

.page-products .cat-upgrade__notice {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 旧版资料（奶油纸区） ---------- */
.page-products .cat-archive {
  background: var(--paper);
  color: var(--brown);
  padding: clamp(34px, 5vw, 70px) 0;
  border-top: 1px solid var(--cat-paper-line);
  border-bottom: 1px solid var(--cat-paper-line);
}

.page-products .cat-archive__eyebrow {
  color: var(--rust);
}

.page-products .cat-archive__title {
  color: var(--brown);
  border-bottom-color: var(--cat-paper-line);
}

.page-products .cat-archive__lede {
  color: #4a3427;
  max-width: 62ch;
}

.page-products .cat-archive__grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .cat-archive__figure {
  margin: 0;
  border-color: var(--cat-paper-line);
  background: var(--paper-2);
}

.page-products .cat-archive__panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .cat-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .cat-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .cat-table caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding-bottom: 10px;
  color: inherit;
  opacity: .7;
}

.page-products .cat-table th,
.page-products .cat-table td {
  border-bottom: 1px solid currentColor;
  border-color: rgba(44, 27, 20, .16);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.page-products .cat-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--paper-2);
  border-bottom: 1px solid rgba(44, 27, 20, .3);
}

.page-products .cat-table tbody th {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--rust);
  white-space: nowrap;
}

.page-products .cat-archive__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin: 0 0 10px;
  color: var(--rust);
}

.page-products .cat-archive__filters ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .cat-archive__filters li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: #4a3427;
}

.page-products .cat-archive__meta {
  font-size: 13px;
  line-height: 1.8;
  margin: 0;
  color: #4a3427;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
}

.page-products .cat-archive__link {
  justify-self: start;
}

.page-products .cat-archive a:not(.btn) {
  color: var(--rust);
}

/* ---------- 设备适配 ---------- */
.page-products .cat-devices {
  padding: clamp(34px, 5vw, 66px) 0;
}

.page-products .cat-devices__figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-products .cat-table--matrix {
  min-width: 540px;
  color: var(--mist);
}

.page-products .cat-table--matrix thead th {
  background: var(--ink-deep);
  color: var(--paper);
  border-bottom-color: var(--line);
}

.page-products .cat-table--matrix tbody th {
  color: var(--cyan);
}

.page-products .cat-table--matrix th,
.page-products .cat-table--matrix td {
  border-color: var(--line-soft);
}

.page-products .cat-table--matrix tbody td {
  font-size: 13px;
}

.page-products .cat-devices__note {
  margin: clamp(16px, 2.5vw, 24px) 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

/* ---------- 如何选择 ---------- */
.page-products .cat-choose {
  padding: clamp(34px, 5vw, 66px) 0 0;
}

.page-products .cat-choose__grid {
  display: grid;
  gap: var(--cat-gap);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .cat-choose__item {
  padding: 20px 18px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-products .cat-choose__item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  margin: 0;
  color: var(--paper);
}

.page-products .cat-choose__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-choose__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  justify-self: start;
}

.page-products .cat-choose__link:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-products .cat-choose__tail {
  margin-top: clamp(24px, 3.5vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-choose__tail p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .cat-choose__tail a:not(.btn) {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .cat-lines__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .cat-choose__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .cat-card__head {
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "no name dev";
    align-items: center;
  }
  .page-products .cat-card__dev {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
  .page-products .cat-lines__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .cat-paths__grid {
    grid-template-columns: minmax(220px, 3fr) minmax(0, 9fr);
    align-items: start;
  }
  .page-products .cat-paths__index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
  .page-products .cat-upgrade__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }
  .page-products .cat-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .cat-archive__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
  .page-products .cat-choose__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-products .cat-hero__copy h1 {
    font-size: 68px;
  }
}
<<<END>>>